EP1486681A1 - Dispositif de commande électrohydraulique et appareil de levage - Google Patents

Dispositif de commande électrohydraulique et appareil de levage Download PDF

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Publication number
EP1486681A1
EP1486681A1 EP04004041A EP04004041A EP1486681A1 EP 1486681 A1 EP1486681 A1 EP 1486681A1 EP 04004041 A EP04004041 A EP 04004041A EP 04004041 A EP04004041 A EP 04004041A EP 1486681 A1 EP1486681 A1 EP 1486681A1
Authority
EP
European Patent Office
Prior art keywords
coil
emergency
control valve
control device
armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04004041A
Other languages
German (de)
English (en)
Other versions
EP1486681B1 (fr
Inventor
Volker Röhm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hawe Hydraulik GmbH and Co KG
Original Assignee
Hawe Hydraulik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hawe Hydraulik GmbH and Co KG filed Critical Hawe Hydraulik GmbH and Co KG
Publication of EP1486681A1 publication Critical patent/EP1486681A1/fr
Application granted granted Critical
Publication of EP1486681B1 publication Critical patent/EP1486681B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
    • F15B13/0442—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with proportional solenoid allowing stable intermediate positions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/10—Special arrangements for operating the actuated device with or without using fluid pressure, e.g. for emergency use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/002—Electrical failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/008—Valve failure

Definitions

  • the invention relates to an electro-hydraulic control device in the preamble of claim 1 specified type, and a hoist in the preamble of the claim 7 specified Art.
  • control valves For hoists it is common to use the control valves for various hydraulic motors a place accessible from the floor and / or in a cabin and to connect to the hydraulic motors via hydraulic lines. In the simplest case the control valves are operated manually with adjusting levers. This principle is relative fail-safe. For example, if a control valve tends to jam exerted more force to correctly adjust the control valve.
  • hoists such as so-called concrete pumps or mobile cranes, integrated in an electronic control, e.g. a CAN bus system to which the Solenoid control valves are also connected to various sensors.
  • the solenoid control valves directly to place the hydraulic motors or at least in their vicinity. For example, let avoiding extremely long hydraulic lines that are at risk of injury, and also becomes a resilient hydraulic column between each Solenoid control valve and the hydraulic motor avoided.
  • the solenoid control valves are only electrical or via the electronics control from the floor and / or in actuators accessible to the cabin. Especially the masts or magnetic control valves arranged on the boom in exposed positions then no longer accessible from the floor and / or the cabin.
  • the invention has for its object an electrohydraulic control device as well as specifying a hoist where, despite the exposed positioning of the respective Magnetic control valve intervened from the floor and / or the cabin in an emergency and the hydraulic motor can be adjusted.
  • the solenoid control valve can be electrically operated using the emergency coil adjust, even if the power supply to the work coil fails or the Work coil is blown, or the force that can be generated with the work coil Adjustment of the solenoid control valve due to sticking of the solenoid control valve should no longer suffice.
  • the anchor should hang for some reason remained, or a valve element of the control valve, so that with the work spool Magnetic force to be applied is no longer sufficient for adjustment, then generated the emergency coil an additional force with which the probability is very high that the solenoid control valve can still be adjusted as desired.
  • the control valve does not need to be adjusted in the same way as with the work coil, e.g.
  • the emergency coil should be designed to operate the control valve in the same way how the work coil can.
  • the emergency coil is sufficient to be connected to the same power source as the work coil to only have a fault in to bypass the power transmission to the work coil.
  • the emergency coil is useful however via its own power source, e.g. a battery to complete in an emergency to be independent of the power supply to the work coil.
  • the emergency coil is positioned around the outside of the work coil or as an extension of the Work coil. This can be easily done with a double winding, for example of the actuating magnet, and separate power connections.
  • the work coil and the emergency coil expediently act on a common one Anchor on.
  • an auxiliary anchor can be provided for the emergency coil, which then either acts on the armature of the work coil or the control valve or a valve element of the control valve directly applied. If necessary, the auxiliary anchor is a direct one Extension of the armature of the work coil.
  • the emergency coil with the anchor or the auxiliary anchor is designed as a black and white magnet.
  • This solution is inexpensive and is sufficient for an emergency.
  • the work spool with the armature can optionally be designed as a proportional magnet, which for Emergency coil with the anchor is not absolutely necessary.
  • the emergency coil is useful with its own wiring from the ground and / or switches accessible in the cabin, e.g. an appropriately marked one Push button connected to the power source, preferably its own Power source. Then the control valve can be easily adjusted, even if the Electronic control or other electrical components should have failed.
  • the work coil is connected to an electronic control connected, preferably to a CAN node of a CAN bus system.
  • the wiring to the emergency coil is separated from the CAN bus system and leaves the adjustment of the control valve even if the CAN bus system is caused by an accident is interrupted or should have become inoperable for another reason.
  • a major advantage of the solution according to the invention is that the Emergency coil modified solenoid control valve is inexpensive and compact, and that the cabling to the respective emergency coil, even if it is very exposed Solenoid control valve can be easily installed.
  • This concept can also be useful be when the work coil is wireless using a transmitter / receiver combination is controlled. It is even conceivable, including the emergency coil to be controlled wirelessly via a transmitter / receiver combination, if necessary then on a different frequency and with its own power source.
  • a hydraulic motor H is used, for example, relative to the section M1 at an angle to adjust section M2 in a joint 1.
  • the hydraulic motor H e.g. one double acting hydraulic cylinder
  • an electrohydraulic control device S is assigned, arranged on the mast M, or directly on the hydraulic motor H, and therefore by is not accessible from the cabin, not shown, or from the ground.
  • electro-hydraulic control device S is a computerized Control device which is integrated in a CAN bus system, two of which CAN nodes C, C1 are shown, which communicate via a CAN bus, not shown.
  • an assembly B made of z. B. four solenoid control valves V1 to V4 are provided and to a pump line 5 of a pump P and a return line 6 connected to a tank T. Two working lines lead from module B. 3, 4 to the hydraulic motor H.
  • the solenoid control valve V2 serves the piston-side space of the hydraulic motor H. to be connected to the pump line via the working line 3.
  • the solenoid control valve V1 serves the piston-side space of the hydraulic motor H via the working line 3 to connect with the return line 6.
  • the solenoid control valve V3 serves the piston rod side Space of the hydraulic motor H via the working line 4 with the pump line 5 to connect.
  • the solenoid control valve V4 serves the piston rod side To connect the space of the hydraulic motor H to the return line 6 via the working line 4.
  • each solenoid control valve V1 to V4 is a 2/2 proportional pressure control valve in seat valve design, each with an actuating magnet 8, e.g. a proportional magnet, which has an electrical control line 9 with is connected to the CAN node C.
  • Each solenoid control valve V1 to V4 is replaced by a Valve spring 7 in the shown shut-off position (leak-free tight) and acted upon the actuating magnet 8 depending on the value of the application current against the Spring 7 adjusted to a pressure control position.
  • the black triangles 10 imply that that the solenoid control valves V1 to V4 are proportional pressure control valves deals with hydraulic pilot control.
  • valve types are used that are electrically operated via an actuating magnet 8 (if necessary even a black and white switching magnet) are adjustable.
  • the solenoid control valves V1 to V4 could also each have two actuating magnets for one Have setting direction.
  • the pump P is connected to a further CAN node C1.
  • CAN node C At the CAN node C are also an articulation angle sensor 2 in the joint 1 and pressure sensors 5 for the working lines 3, 4 connected.
  • the solenoid control valve V2 is adjusted to a regulating open position, while at the same time the solenoid control valve V4 is adjusted to a regulating passage position.
  • the solenoid control valve V1 from the shown shut-off position in a regulating passage position while at the same time the solenoid control valve V3 from the shut-off position shown in a regulating Passage position is adjusted.
  • all the solenoid control valves V1 to V4 are in their shut-off positions, so that the hydraulic motor H is hydraulically blocked.
  • the actuating magnet is now (only shown with the aid of the solenoid control valve V4) 8 assigned an emergency coil N, which has its own wiring 11 and a switch 12 is connected to a power source 13 and enables by means of the switch 12 (e.g. a button in the cabin or accessible from the floor) to adjust the respective solenoid control valve V4 in an emergency.
  • All are expedient Solenoid control valves V1 to V4, regardless of their design, with such an emergency coil N equipped.
  • the current source 13 can be used for basic power supply belong to the hoist A, but is expediently a completely independent Power source (battery), even in the event of a power failure of the entire system remains functional.
  • all emergency coils N be connected together to a wiring 11. However, is more appropriate for each emergency coil N provided its own wiring 11 to the solenoid control valves To be able to individually adjust V1 to V4 in an emergency.
  • the emergency coil N is replaced by a Double winding of the working coil of the actuating magnet 8 is formed, i.e. that the Working coil of the actuating magnet 8 is wound from two wires, one of which to the electrical control line 9 and the other is connected to the wiring 11.
  • the emergency coil N is embodiments to give preference to where the work coil and the emergency coil are separate, for example as shown in Figs. 2 and 3.
  • the actuating magnet 8 of the solenoid control valve V4 has a work coil 17, which surrounds an anchor 15.
  • the armature 15 is in the starting position by a return spring 16 held and when current is applied to the work coil 17 in the direction of the arrow adjusted to a not shown element of the magnetic control valve via a plunger 15a Press V4.
  • the work coil 17 includes a connection connector 18 for the electrical control line 9. Concentric to work coil 17 is in the embodiment shown outside a second winding 19 is provided, which forms the emergency coil N. and is connected to the wiring 11 via a connection connector 20.
  • the emergency coil N acts on the same armature 15 as the work coil 17.
  • Fig. 3 is on the actuating magnet 8 coaxial with the work coil 17 and the armature 15 the emergency coil N is provided with the winding 19 and an auxiliary armature 15 ', so that the element of the solenoid control valve V4, not shown, when the emergency coil is applied N can be operated by the auxiliary anchor 15 'via the anchor 15.
  • the auxiliary anchor 15 ' could also with the emergency coil N between the armature 15 and the member of the solenoid control valve V4 may be arranged.
  • the respective solenoid control valve V1 to V4 Since it is sufficient to rectify an emergency, the respective solenoid control valve V1 to V4 to adjust somehow, it is sufficient if the emergency coil with the armature 15 or the Auxiliary anchor 15 'is designed as a black / white switching magnet, which is full when excited switched through and does not perform a proportional function.
  • the work spool 17 is blown.
  • the emergency coil N energized and the armature 15 adjusted.
  • the CAN bus system or the CAN node C is inoperative, or the electrical Control line interrupted.
  • the armature 15 can be closed by closing the switch 12 nevertheless adjust to actuate the solenoid control valve V4.
  • the entire power supply has failed, only the power source 13 is functional.
  • the armature 15 can be adjusted as desired by actuating the switch 12.
  • Either the armature 15 and / or the element of the solenoid control valve V4 is or are so stiff that the force of the actuating magnet 8 is no longer sufficient Anchor 15 to adjust.
  • By pressing the switch 12 is also on the emergency coil N builds up a magnetic force that is generated by the work coil 17 Magnetic force adds up and with high probability the impermissibly high movement resistance helps overcome.
  • the emergency coils can also be used profitably for this.
  • the actuating magnets 8 and / or the emergency coils N are controlled wirelessly, for example with the aid of transmitter / receiver combinations.
  • the emergency coils can if necessary can even be controlled via fixed cabling.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electromagnetism (AREA)
  • Control And Safety Of Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP20040004041 2003-06-13 2004-02-23 Dispositif de commande électrohydraulique et appareil de levage Expired - Fee Related EP1486681B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20309190U DE20309190U1 (de) 2003-06-13 2003-06-13 Elektrohydraulische Steuervorrichtung und Hebezeug
DE20309190U 2003-06-13

Publications (2)

Publication Number Publication Date
EP1486681A1 true EP1486681A1 (fr) 2004-12-15
EP1486681B1 EP1486681B1 (fr) 2006-08-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040004041 Expired - Fee Related EP1486681B1 (fr) 2003-06-13 2004-02-23 Dispositif de commande électrohydraulique et appareil de levage

Country Status (3)

Country Link
EP (1) EP1486681B1 (fr)
DE (2) DE20309190U1 (fr)
ES (1) ES2271717T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143606A1 (fr) * 2008-07-11 2010-01-13 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Dispositif de freinage électropneumatique d'un véhicule sur rails
EP2199186A1 (fr) 2008-12-17 2010-06-23 HAWE Hydraulik SE Dispositif de commande de direction hydraulique
CN101571207B (zh) * 2009-06-15 2010-12-01 哈尔滨工程大学 冗余双电磁阀
WO2019068501A1 (fr) * 2017-10-06 2019-04-11 Continental Teves Ag & Co. Ohg Agencement de soupapes et système de freinage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102502414B (zh) * 2011-12-27 2013-12-18 连云港远洋流体装卸设备有限公司 软管吊机用超载及起升限位阀
CN111677713B (zh) * 2020-05-19 2022-05-10 徐州徐工随车起重机有限公司 一种直臂随车起重机用合流比例多路换向阀及工作方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128677A (en) * 1962-04-30 1964-04-14 Hydraulic Unit Specialities Co Control instrumentality having detent mechanism
DE3038338A1 (de) * 1980-10-10 1982-05-06 Zahnräderfabrik Renk AG, 8900 Augsburg Elektro-magnetisches mehrwegeventil
DE3310866A1 (de) * 1983-03-25 1984-09-27 Robert Bosch Gmbh, 7000 Stuttgart Magnetventil mit mehreren betriebsstellungen
EP0342461A2 (fr) * 1988-05-14 1989-11-23 Bodenseewerk Gerätetechnik GmbH Dispositif de commande à régulateur redondant pour une soupape actionnée par un moteur électrique
US6398182B1 (en) * 2000-08-31 2002-06-04 Husco International, Inc. Pilot solenoid control valve with an emergency operator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128677A (en) * 1962-04-30 1964-04-14 Hydraulic Unit Specialities Co Control instrumentality having detent mechanism
DE3038338A1 (de) * 1980-10-10 1982-05-06 Zahnräderfabrik Renk AG, 8900 Augsburg Elektro-magnetisches mehrwegeventil
DE3310866A1 (de) * 1983-03-25 1984-09-27 Robert Bosch Gmbh, 7000 Stuttgart Magnetventil mit mehreren betriebsstellungen
EP0342461A2 (fr) * 1988-05-14 1989-11-23 Bodenseewerk Gerätetechnik GmbH Dispositif de commande à régulateur redondant pour une soupape actionnée par un moteur électrique
US6398182B1 (en) * 2000-08-31 2002-06-04 Husco International, Inc. Pilot solenoid control valve with an emergency operator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2143606A1 (fr) * 2008-07-11 2010-01-13 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Dispositif de freinage électropneumatique d'un véhicule sur rails
EP2199186A1 (fr) 2008-12-17 2010-06-23 HAWE Hydraulik SE Dispositif de commande de direction hydraulique
CN101571207B (zh) * 2009-06-15 2010-12-01 哈尔滨工程大学 冗余双电磁阀
WO2019068501A1 (fr) * 2017-10-06 2019-04-11 Continental Teves Ag & Co. Ohg Agencement de soupapes et système de freinage
US11685356B2 (en) 2017-10-06 2023-06-27 Continental Teves Ag & Co. Ohg Valve arrangement and brake system

Also Published As

Publication number Publication date
DE20309190U1 (de) 2004-10-21
ES2271717T3 (es) 2007-04-16
DE502004001243D1 (de) 2006-10-05
EP1486681B1 (fr) 2006-08-23

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